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Towards Sustainable Viscose-to-Viscose Production: Strategies for Recycling of Viscose Fibres

Author

Listed:
  • Diana Carolina Reyes Forsberg

    (MoRe Research AB (RISE), Box 70, 891 22 Örnsköldsvik, Sweden)

  • Jenny Bengtsson

    (Fiber Development, Department of Polymer, Fiber and Composites, RISE Research Institutes of Sweden, Argongatan 30, 431 53 Mölndal, Sweden)

  • Nadine Hollinger

    (MoRe Research AB (RISE), Box 70, 891 22 Örnsköldsvik, Sweden)

  • Tahani Kaldéus

    (The Loop Factory AB, Industrivägen 6B, 432 40 Varberg, Sweden)

Abstract

The potential for using discarded viscose textiles to produce high-quality viscose fibres is limited by the low molecular weight of the cellulose and its continued reduction in the recycling process. Herein, we present a straightforward approach of reprocessing discarded viscose textiles while achieving high-quality recycled viscose fibres. Discarded viscose textile was defibrated and centrifuged, and the resulting fibres were reprocessed under industrially relevant conditions. The produced viscose dope was fluid and resulted in viscose fibres with properties comparable to fibres made from commercial wood cellulose pulp (titer ~2 dtex; dry elongation ~16%, dry tenacity ~15 cN/tex). To explore the potential for a more environmentally friendly production process, the steeping step was performed twice (double-steeping), thereby producing a more homogeneous viscose dope. Through double-steeping, the consumption of carbon disulfide (CS 2 ) could be reduced by 30.5%. The double-steeping method shows to be a suitable approach to reprocess discarded viscose textiles while reducing the environmental impact of the viscose process associated with the use of CS 2 . Our work demonstrates that discarded viscose textile has the potential to be part of a circular textile value chain.

Suggested Citation

  • Diana Carolina Reyes Forsberg & Jenny Bengtsson & Nadine Hollinger & Tahani Kaldéus, 2024. "Towards Sustainable Viscose-to-Viscose Production: Strategies for Recycling of Viscose Fibres," Sustainability, MDPI, vol. 16(10), pages 1-14, May.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:10:p:4127-:d:1394718
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    References listed on IDEAS

    as
    1. Anna Peterson & Johan Wallinder & Jenny Bengtsson & Alexander Idström & Marta Bialik & Kerstin Jedvert & Hanna de la Motte, 2022. "Chemical Recycling of a Textile Blend from Polyester and Viscose, Part I: Process Description, Characterization, and Utilization of the Recycled Cellulose," Sustainability, MDPI, vol. 14(12), pages 1-16, June.
    2. Shen, Li & Worrell, Ernst & Patel, Martin K., 2010. "Environmental impact assessment of man-made cellulose fibres," Resources, Conservation & Recycling, Elsevier, vol. 55(2), pages 260-274.
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